Krakowski and Diamantopoulos join previously announced cast members Emmy Award nominee Maya Rudolph ("Saturday Night Live," "Bridesmaids"), who will star as Ralphie's mother; two-time Tony Award winner Matthew Broderick ("How to Succeed in Business without Really Trying," "The Producers," "Ferris Bueller') who will star as the narrator; and Andy Walken, who will play Ralphie.